package com.hx.haowumall.haowumallproduct.service.impl;

import com.alibaba.fastjson.TypeReference;
import com.hx.common.constant.ProductConstant;
import com.hx.common.to.SkuHasStockVo;
import com.hx.common.to.es.SkuEsModel;
import com.hx.common.to.SkuReductionTo;
import com.hx.common.to.SpuBoundTo;
import com.hx.common.utils.Query;
import com.hx.common.utils.R;
import com.hx.haowumall.haowumallproduct.entity.*;
import com.hx.haowumall.haowumallproduct.feign.CouponFeignService;
import com.hx.haowumall.haowumallproduct.feign.SearchFeignService;
import com.hx.haowumall.haowumallproduct.feign.WareFeignService;
import com.hx.haowumall.haowumallproduct.service.*;
import com.hx.haowumall.haowumallproduct.vo.*;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.math.BigDecimal;
import java.util.*;
import java.util.stream.Collectors;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.hx.common.utils.PageUtils;

import com.hx.haowumall.haowumallproduct.dao.SpuInfoDao;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.util.StringUtils;


//TODO 高级部分完善
@Service("spuInfoService")
public class SpuInfoServiceImpl extends ServiceImpl<SpuInfoDao, SpuInfoEntity> implements SpuInfoService {

    @Autowired
    SpuInfoDescService spuInfoDescService;

    @Autowired
    SpuImagesService imagesService;

    @Autowired
    AttrService attrService;

    @Autowired
    ProductAttrValueService attrValueService;

    @Autowired
    SkuInfoService skuInfoService;

    @Autowired
    SkuImagesService skuImagesService;

    @Autowired
    SkuSaleAttrValueService skuSaleAttrValueService;

    @Autowired
    CouponFeignService couponFeignService;

    @Autowired
    BrandService brandService;

    @Autowired
    CategoryService categoryService;

    @Autowired
    WareFeignService wareFeignService;

    @Autowired
    SearchFeignService searchFeignService;

    @Override
    public PageUtils queryPage(Map<String, Object> params) {
        IPage<SpuInfoEntity> page = this.page(
                new Query<SpuInfoEntity>().getPage(params),
                new QueryWrapper<SpuInfoEntity>()
        );

        return new PageUtils(page);
    }

    @Transactional
    @Override
    public void saveSpuInfo(SpuSaveVo vo) {
        // 1、保存spu基本信息,`pms_spu_info`
        SpuInfoEntity infoEntity = new SpuInfoEntity();
        BeanUtils.copyProperties(vo,infoEntity);
        infoEntity.setCreateTime(new Date());
        infoEntity.setUpdateTime(new Date());
        this.saveBaseSpuInfo(infoEntity);

        // 2、保存spu的描述图片,`pms_spu_info_desc`
        List<String> decript = vo.getDecript();
        SpuInfoDescEntity descEntity = new SpuInfoDescEntity();
        descEntity.setSpuId(infoEntity.getId());
        descEntity.setDecript(String.join(",",decript));
        spuInfoDescService.saveSpuInfoDesc(descEntity);

        // 3、保存spu的图片集,`pms_spu_images`
        List<String> images = vo.getImages();
        imagesService.saveImages(infoEntity.getId(),images);

        // 4、保存spu的规格参数，`pms_product_attr_value`
        List<BaseAttrs> baseAttrs = vo.getBaseAttrs();
        List<ProductAttrValueEntity> collect = baseAttrs.stream().map(attr -> {
            ProductAttrValueEntity valueEntity = new ProductAttrValueEntity();
            valueEntity.setAttrId(attr.getAttrId());

            AttrEntity id = attrService.getById(attr.getAttrId());
            valueEntity.setAttrName(id.getAttrName());

            valueEntity.setAttrValue(attr.getAttrValues());
            valueEntity.setQuickShow(attr.getShowDesc());
            valueEntity.setSpuId(infoEntity.getId());

            return valueEntity;
        }).collect(Collectors.toList());
        attrValueService.saveProductAttr(collect);

        // 5、保存spu的积分信息，`haowumall_sms`->`sms_spu_bounds`
        Bounds bounds = vo.getBounds();
        SpuBoundTo spuBoundTo = new SpuBoundTo();
        BeanUtils.copyProperties(bounds,spuBoundTo);
        spuBoundTo.setSpuId(infoEntity.getId());
        R r =couponFeignService.saveSpuBounds(spuBoundTo);
        if (r.getCode() != 0){
            log.error("远程保存sku积分信息失败");
        }

        //6、保存当前spu对应的所有sku信息
        List<Skus> skus = vo.getSkus();
        if (skus != null && skus.size() > 0){
            skus.forEach(item->{
                String defaultImgUrl = "";
                for (Images image: item.getImages()) {
                    if (image.getDefaultImg() == 1){
                        defaultImgUrl = image.getImgUrl();
                    }
                }
//                private String skuName;
//                private BigDecimal price;
//                private String skuTitle;
//                private String skuSubtitle;
                SkuInfoEntity skuInfoEntity = new SkuInfoEntity();
                BeanUtils.copyProperties(item,skuInfoEntity);
                skuInfoEntity.setBrandId(infoEntity.getBrandId());
                skuInfoEntity.setCatalogId(infoEntity.getCatalogId());
                skuInfoEntity.setSaleCount(0L);
                skuInfoEntity.setSpuId(infoEntity.getId());
                skuInfoEntity.setSkuDefaultImg(defaultImgUrl);
                //6.1）、保存sku的基本信息，`pms_sku_info`
                skuInfoService.saveSkuInfo(skuInfoEntity);

                Long skuId = skuInfoEntity.getSkuId();

                List<SkuImagesEntity> imagesEntities = item.getImages().stream().map(img -> {
                    SkuImagesEntity skuImagesEntity = new SkuImagesEntity();
                    skuImagesEntity.setSkuId(skuId);
                    skuImagesEntity.setImgUrl(img.getImgUrl());
                    skuImagesEntity.setDefaultImg(img.getDefaultImg());
                    return skuImagesEntity;
                }).filter(entity->{
                    //true才可以被收集
                    return !StringUtils.isEmpty(entity.getImgUrl());
                }).collect(Collectors.toList());
                //6.2）、保存sku的图片信息，`pms_sku_images`
                skuImagesService.saveBatch(imagesEntities);


                List<Attr> attr = item.getAttr();
                List<SkuSaleAttrValueEntity> skuSaleAttrValueEntities = attr.stream().map(a -> {
                    SkuSaleAttrValueEntity attrValueEntity = new SkuSaleAttrValueEntity();
                    BeanUtils.copyProperties(a, attrValueEntity);
                    attrValueEntity.setSkuId(skuId);
                    return attrValueEntity;
                }).collect(Collectors.toList());
                //6.3）、保存sku的销售属性信息，`pms_sku_sale_attr_value`
                skuSaleAttrValueService.saveBatch(skuSaleAttrValueEntities);

                //6.4）、保存sku的优惠、满减等信息，`haowumall_sms`->`sms_sku_ladder`\`sms_sku_full_reduction`\`sms_member_price`
                SkuReductionTo skuReductionTo = new SkuReductionTo();
                BeanUtils.copyProperties(item,skuReductionTo);
                skuReductionTo.setSkuId(skuId);
                if (skuReductionTo.getFullCount() > 0 || skuReductionTo.getFullPrice().compareTo(new BigDecimal("0")) == 1){
                    R r1 = couponFeignService.saveSkuReduction(skuReductionTo);
                    if (r1.getCode() != 0){
                        log.error("远程保存sku优惠信息失败");
                    }
                }

            });
        }




    }

    @Override
    public void saveBaseSpuInfo(SpuInfoEntity infoEntity) {
        this.baseMapper.insert(infoEntity);
    }

    @Override
    public PageUtils queryPageByCondition(Map<String, Object> params) {
        QueryWrapper<SpuInfoEntity> wrapper = new QueryWrapper<>();

        String key = (String) params.get("key");
        if (!StringUtils.isEmpty(key)){
            wrapper.and((w)->{
                w.eq("id",key).or().like("spu_name",key);
            });
        }

        String status = (String) params.get("status");
        if (!StringUtils.isEmpty(status)){
            wrapper.eq("publish_status",status);
        }

        String brandId = (String) params.get("brandId");
        if (!StringUtils.isEmpty(brandId) && !"0".equalsIgnoreCase(brandId)){
            wrapper.eq("brand_id",brandId);
        }

        String catelogId = (String) params.get("catelogId");
        if (!StringUtils.isEmpty(catelogId) && !"0".equalsIgnoreCase(catelogId)){
            wrapper.eq("catalog_id",catelogId);
        }

        /*
        * status
        * key: '华为',//检索关键字
	      catelogId: 0,
	      brandId: 0,
        *
        * */


        IPage<SpuInfoEntity> page = this.page(
                new Query<SpuInfoEntity>().getPage(params),wrapper
        );

        return new PageUtils(page);
    }

    @Override
    public void up(Long spuId) {


        //组装需要的数据
        SkuEsModel esModel = new SkuEsModel();
        //1、查出当前spuid对应的所有的sku信息,品牌的的名字
        List<SkuInfoEntity> skus = skuInfoService.getSkusBySpuId(spuId);
        List<Long> skuIdList = skus.stream().map(SkuInfoEntity::getSkuId).collect(Collectors.toList());

        //TODO 4、查询当前sku所有可以被检索规格属性

        List<ProductAttrValueEntity> baseAttrs = attrValueService.baseAttrListforspu(spuId);
        List<Long> attrIds = baseAttrs.stream().map(attr -> {
            return attr.getAttrId();
        }).collect(Collectors.toList());

        List<Long> searchAttrIds = attrService.selectSearchAttrIds(attrIds);

        HashSet<Long> idSet = new HashSet<>(searchAttrIds);

        List<SkuEsModel.Attrs> attrsList = baseAttrs.stream().filter(item -> {
            return idSet.contains(item.getAttrId());
        }).map(item -> {
            SkuEsModel.Attrs attrs = new SkuEsModel.Attrs();
            BeanUtils.copyProperties(item, attrs);
            return attrs;
        }).collect(Collectors.toList());


        //TODO 1、发送远程调用，库存系统查询是否有库存
        Map<Long, Boolean> stockMap = null;
        try{
            R r = wareFeignService.getSkuHasStock(skuIdList);

            //
            TypeReference<List<SkuHasStockVo>> typeReference = new TypeReference<List<SkuHasStockVo>>() {
            };
            stockMap = r.getData(typeReference).stream().
                    collect(Collectors.toMap(SkuHasStockVo::getSkuId, item -> item.getHasStock()));
        }catch (Exception e){
            log.error("库存服务查询有异常：原因{}",e);
        }

        //2、封装每个sku的信息
        Map<Long, Boolean> finalStockMap = stockMap;
        List<SkuEsModel> upProducts = skus.stream().map(sku -> {
            //组装需要的数据
            SkuEsModel esuModel = new SkuEsModel();
            BeanUtils.copyProperties(sku,esuModel);

            //skuPrice,skuImg,
            esuModel.setSkuPrice(sku.getPrice());
            esuModel.setSkuImg(sku.getSkuDefaultImg());
            //hasStock,hotScore
            //设置库存信息
            if ( finalStockMap == null){
                esuModel.setHasStock(true);
            }else {
                esuModel.setHasStock(finalStockMap.get(sku.getSkuId()));
            }


            //TODO 2、热热度评分
            esuModel.setHotScore(0L);

            //TODO 3、查询品牌和分类的名字信息
            //brandName;brandImg; catalogName;
            BrandEntity brand = brandService.getById(esuModel.getBrandId());
            esuModel.setBrandName(brand.getName());
            esuModel.setBrandImg(brand.getLogo());

            CategoryEntity category= categoryService.getById(esuModel.getCatalogId());
            esuModel.setCatalogName(category.getName());


            //设置检索属性
            esuModel.setAttrs(attrsList);

            return esuModel;
        }).collect(Collectors.toList());

        //TODO 5、将数据发给es进行保存 haowumall-search

        R r = searchFeignService.productStatusUp(upProducts);
        if (r.getCode() == 0){
            //远程调用成功
            //TODO 6、修改当前spu的状态
            baseMapper.updateSpuStatus(spuId, ProductConstant.StatusEnum.SPU_UP.getCode());
        }else {
            //远程调用失败
            //TODO 7、重复调用？接口幂接性:重试机制?
            //Feign调用流程
            /**
             *
             * *1、构造请求数据，将对象转为json;
             * RequestTemplate template = buildTemplateFromArgs.create(argu);
             * *2、发送请求进行执行（执行成功会解码响应数据）:
             * executeAndDecode(template);
             * *3、执行请求会有重试机制
             * while(true){
             * try{
             * executeAndDecode(template);
             * }catch(){
             *     try{
             *          retryer.continueOrPropagate(e);
             *     }
             *     catch(){
             *         throw ex;
             *     }
             *     continue;
             * }
             *
             * */

        }

    }

    @Override
    public SpuBrandNameVo getSpuInfoBySkuId(Long skuId) {

        //获取spuEntity
        SkuInfoEntity byId = skuInfoService.getById(skuId);
        Long spuId = byId.getSpuId();
        SpuInfoEntity spuInfoEntity = getById(spuId);

        //获取品牌名字
        Long brandId = spuInfoEntity.getBrandId();
        BrandEntity brandEntity = brandService.getById(brandId);
        String brandName = brandEntity.getName();

        //设置新的Vo spuBrandNameVo
        SpuBrandNameVo spuBrandNameVo = new SpuBrandNameVo();
        BeanUtils.copyProperties(spuInfoEntity,spuBrandNameVo);
        spuBrandNameVo.setBrandName(brandName);

        return spuBrandNameVo;
    }

}